如何将我的 Flutter 项目转换为 apk 文件

Question

我已经构建了一个简单的 Flutter SMS 报告系统，但我面临着将项目转换为 APK 文件格式的挑战。

我已尝试使用 CMD 提示将 Flutter 项目转换为 APK 文件，但我认为我的设置存在 Gradle 问题，因此无法转换文件。

我尝试过使用CMD方法：

• flutter 构建 apk

• flutter 构建 apk --release

但是在运行命令后，我收到一条错误消息：

Microsoft Windows \[Version 10.0.22631.4249\]

(c) Microsoft Corporation. All rights reserved.

F:\\CurrentSMSAPP\\electionresults_results_sms_collation_mobileapp\>flutter build apk

 Building with sound null safety 

/main.dart: Error: Error when reading '/main.dart': The system cannot find the file specified.

package:electionresults_results_sms_collation_mobileapp//main.dart: Error: No 'main' method found.

Try adding a method named 'main' to your program.

Target kernel_snapshot failed: Exception

FAILURE: Build failed with an exception.

\* Where:

Script 'D:\\installed\\flutter\\packages\\flutter_tools\\gradle\\flutter.gradle' line: 1151

\* What went wrong:

Execution failed for task ':app:compileFlutterBuildRelease'.

\\> Process 'command 'D:\\installed\\flutter\\bin\\flutter.bat'' finished with non-zero exit value 1

\* Try:

\\> Run with --stacktrace option to get the stack trace.

\\> Run with --info or --debug option to get more log output.

\\> Run with --scan to get full insights.

\* Get more help at https://help.gradle.org

BUILD FAILED in 36s

Running Gradle task 'assembleRelease'...                           38.5s

Gradle task assembleRelease failed with exit code 1

F:\\CurrentSMSAPP\\electionresults_results_sms_collation_mobileapp\>

Answer 1

项目是否构建并运行成功？您似乎有构建错误。日志说找不到 main.dart。确保它位于project_directory/lib/main.dart中。

您还应该在 pubspec.yaml 文件所在的位置运行

flutter build apk

命令。

如果您所做的一切都正确但无法解决问题，请尝试运行

flutter clean

，然后再次构建。

Answer 2

对于最终版本，您可以使用以下命令生成APK或appbundle进行发布。

应用程序包：

flutter build appbundle --no-tree-shake-icons --target-platform android-arm,android-arm64,android-x64 --release

APK：

flutter build apk --no-tree-shake-icons --target-platform android-arm,android-arm64,android-x64 --release